About ______ of the body weight of a mammal is water....? Mcqs

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About ______ of the body weight of a mammal is water....?

(A) 70%
(B) 75%

(C) 80%
(D) 90%

Latest MCQs

A region of space where matter has collapsed in on itself is called a...?

(A) White Dwarf
(B) Wormhole

(C) Black Hole
(D) Neutron Star

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Titan, a moon of __________ , and Triton, a moon of _________ , have atmospheres mainly of _________....?

(A) Saturn, Jupiter, Hydrogen
(B) Uranus, Neptune, Nitrogen

(C) Saturn, Neptune, Nitrogen
(D) Mars, Venus, Hydrogen

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The lifespan of Red Blood Cells is __________ days...?

(A) 60
(B) 120

(C) 180
(D) 240

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Which vitamin is most soluble in water...?

(A) Vitamin D
(B) Vitamin B

(C) Vitamin C
(D) Both B and C

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Which of following is not a digestive enzyme in human body...?

(A) Pepsin
(B) Trypsin

(C) Gastrin
(D) Ptyalin

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The process of splitting water molecules in the presence of light energy is called_________...?

(A) Electrolysis
(B) Photolysis

(C) Radiolysis
(D) Thermolysis

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The only source of energy on earth is ____...?

(A) Moon
(B) Star

(C) Water
(D) Sun

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The solar wind is a stream of charged particles mostly...?

(A) protons and electrons; flows out from the sun
(B) electrons; flows out from the sun

(C) protons; flows out from the sun
(D) protons and electrons; revolves around the sun

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A process in which light rays falls on any material object and these rays bounce back is known as...?

(A) Reflection
(B) Refraction

(C) Diffusion
(D) Absorption

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